DataWorks问：odps如何获取数组中所有name值和对应的service_id的值？

DataWorks问：odps如何获取数组[{"name":"cn-beijing-prod","weight":60,"local_traffic_strategy":"weighted","services":[{"service_id":"535c9d7a","weight":40},{"service_id":"5f11b90b","weight":20}]},{"name":"cn-heyuan-prod","weight":0,"local_traffic_strategy":"weighted","services":[{"service_id":"db7f0c56","weight":0}]},{"name":"cn-chengdu-prod","weight":0,"local_traffic_strategy":"weighted","services":[{"service_id":"70f57f0a","weight":0}]}]中所有name值和对应的service_id的值？